New Post: format minimum and maximum value for Y-axis

Okay, fine. Is there any way I PDER limit, in my y-axis, the following situation:
Start with 9 instead of 0 and ending with 19 at intervals of 2?

For example:

       Y
   19 |
   17 |
   15 |
   13 |
   11 |
   9 |
       | _______________________X
        mar apr may jun jul